Rotary and sliding bolt lock



Oct. 27, 1953 E. MANCUSO ROTARY AND SLIDING BOLT LOCK 2 Sheets-Sheet 1Filed Aug. 25, 1950 J I I ATTORNEV-$ Oct. 27, 1953 E. MANCUSO 2,656,704

ROTARY AND SLIDING BOLT LOCK Filed Aug. 25, 1950 2 Sheets-Sheet 2 L l lI F( r 1 l I i j L J Q i L Z5j l- S i mum/Ton ,MANUEL MANOUSO F/G BY 42%A TTOQNEYS Patented Oct. 27, 1953 UNITED STATES PATENT OFFICE 2 Claims.

Thisinvention relates to a padlock, particularly adaptable for use inconnection with a hasp and staple type of'fastening for doors, win--,dows, chests and the like. The general object of the invention is ,toprovide a :padlock adapted to cooperate witha staple in :such a manneras to protect the staple against tampering. The conventional hasp andstaple mechanism for looking a garage door, for example, when sei curedby a conventional padlock, leaves the staple exposed so that it may bereadily severed with a hacksaw or cold chisel, thus permitting therelease of the hasp without unlocking the padlock. The lock of myinvention is designed to enclose the staple and to fit against the haspso as to prevent access to the staple.

Another object of the invention is to provide such a lock which is ofrelatively simple and durable, yet sturdy construction, resistingeiforts to unlock it by damaging or destroying its parts. Morespecifically, the invention contemplates a lock having a locking boltand a looking tumbler, the bolt being releasable only by rotation of thetumbler.

A further object is to'provide such a loclqhaving a locking bolt whichis spring urged toward its release position, so as to spring to thereleased position automatically when released by rotation of thetumbler, andwhioh has a projecting end adapted to be manually engaged to:return it to its locked position.

.A further object is to provide a lock havinga novel and improvedarrangement of rotatable, key-actuated tumbler, a spring urged lockingpin adapted to be retracted by rotation of the tumbler, a locking boltnormally held locked by :the locking pin, and a staple receiving recessadapted to substantially completely receive the staple of a staple andhasp combination, the recess being intersected by the looking bolt sothat the latter may project through the staple as received in therecess, whereby to secure the lock :to the staple and thereby look thehasp to the staple.

Otherobjects will become apparentin-the en- ;suing specification andappended drawings in ,which:

Fig. 1 is a perspective view-of a lock embodying the invention;

Fig. 2 is a side elevation of thesame, partially in section as indicatedby line 2--2 of Fig.3;

Fig. 3 is a rear viewof the same;

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 3;

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 2;

Fig. ,6 is a detail cross sectional view taken on the line 6-6 of'Fig.5;

Fig. ,7 is a detail sectional view taken on the line 'l'! of Fig. 5;

Fig. 8 is an *elevational view of a lock and hasp assembly embodying amodified form of the invention;

Fig. 9 is a plan view of the same;

Fig. 10 is an end view of the same viewed from thele'ft end of Fig. '9;and

Fig. 1 1 :is a cross sectional view of the same takenon the'line l- -llof Fig. 8.

As an example ofone form in which the invention maybe embodied, I haveshown in Figs. 1-7 inclusive of the drawing, a lock, indicated generallyat 1, adapted to secure the staple 8 of a staple and hasp combination.Such a combination'may include the staple B, attached to a door or adoor jambby means of a base plate 9 in which its respective ends aresecured, and a hasp including a tongue [0 hinged at H to a tab l2 whichis adapted to be secured to a door jamb or a door.

Thelock l embodies a housing I4 which may consist in a solid block oftough, resistant ma terial such as manganese steel, having therein afiat elongated staple receiving recess [5, a lock tumbler barrel or boreI6, a locking bolt bearing bore l1, and a locking pin bearing bore l8,all of which may be machined in the housing block I 4 by boring androuting operations (boring for the bores 16, and I8 and routing for therecess l5).

Recess 15 extends parallel to the longitudinal axis of housing block l4,adjacent one side thereof, and will normally be positioned verticallywhen the lock is attached to a staple positioned in a normalverticalplane for a door securing arrangement. It is positioned preferably nearthat end of the housing block which becomes the upper end of the lock inits normal use position, in which case the lock will hang 'from thestaple with its center of gravity below the center of the staple. Alocking bolt I9 is slidablyrmounted in bore l1, and has a lockingendthat normally traverses recess i5 asshown in Fig. 5. The bore islocated near the upper extremity of recess '15, so that a space 20 isdefined between bolt I 9 and the upper extremity o recess l5, justsuflicientlywide to receive the upper arm of staple 8 with slightclearance (just adequate to'allow free sliding movement of bolt [9beneath said upper arm). Bore H has a closed end,indicated at 2| in Fig.5, projecting just slightly beyond the outer side of recess l5 so thatlooking end [9' of bolt 19 may completely traverse the recess. The wallportion 222 of housing block 14 which closes this end of bore I'Iprevents access to the locking end 19' of the bolt. The other end ofbore ll opens through the other side of housing l4 as indicated in Figs.'1 and 5. This other end of the bore is in the form of a slightlyenlarged counterbore ll which defines, with bolt [9, an annular space inwhich is accommodated a coil spring 23. Coil spring 23 is engaged undercompression between a shoulder 24 constituting the bottom of counterborel1, and an enlarged head 25 on the exposed end of bolt I9. Head 25 isfitted fairly snugly in counterbore ll while bolt I9 is fitted fairlysnugly in bore H, the fit in each case having just sufiicient clearanceto allow free sliding action of bolt I9.

Bolt 19 has in its intermediate portion an annular groove 26 defined onone side by a square shoulder 21 and on its other side by afrustoconical shoulderzt. Shoulder 2? defines the inner extremity of thelocking end portion I9 of bolt l9. It also functions as a detentshoulder against which a locking pin 29 may engage so as to lock thebolt l9 in its locked position as shown, resisting the yielding pressureof coil spring 23 tending to withdraw locking end ii! from recess 283.Looking pin 29 is slidably fitted within bore 3, with just sufficientclearance to allow free sliding movement therein. It is spring urged, bya small coil spring 36 engaged under compression between its outer endand a plug 3! in housing block it, the resilient pressure of spring 33tending to move locking pin 29 into its locking position received inannular groove 26.

Secured to locking pin 29 is an abutment arm 32, which projectslaterally therefrom into turnbler barrel i5. Arm 32, as illustrated inFig. 6, has a bifurcated end 33 which is received in an annular groove34 in locking pin 29, with its furcations snugly embracing the reducedneck portion 35 defined in locking pin 29 by groove 34.

The shoulder extremities of pin 29 which define groove 34 snugly embracethe sides of bifurcated portionas, and the latter is welded to the pin!29. Thus the arm is rigidly and securely fas toned to the locking pin.

Tumbler bore ii at one end opens into the rear face of housing block id.At the front of the block it is partially closed by an annular flangewhich defines, a reduced opening 33 in the front side of housing block Alocking tumbler unit which may be of conventional construction, has acasing 39 of sleeve forin, mounted in the forward portion of bore i6 andhas a conventional rotatable core portion at, the outer end of whichextends into and is rotatably received in reduced opening Thenon-rotatable casing 39 of the tumbler unit, in which'core portion 4i]is rotatably mounted engages against flange 3! to securely retain thetumbler unit within housing block i i. A retaining screw ii, threadedinto a bore '22 in housing i i, engages a lip or lug so proj ecting fromone side of tumbler casing 39, to retain the latter against axialshifting in bore 86.

On the inner end of rotatable tumbler core ii! is a circular cam. oreccentric 4-; which bears U against abutment arm 32, pushing the lockingpin is downwardly so as to release its upper end from groove 2% whencore lb is rotated to an unlocked position, It will be understood inthis connection that core incorporates conventional tumblers, and alsohas a key slot for receiving a key to draw the tumblers from positionsin which they engage within casing 39 to lock core member do againstrotation, to withdrawn positions in which they allow core ii] to berotated. These features. which are conventional in any rotatable tumblercore of a tumbler lock, are not shown in the drawings. The position ofcam 44 when tumbler core 48 is locked is shown in full lines in Figs. 2and 5 and in dotted lines in Fig. 3

while the position of cam 44 in the unlocked position of core 4!? isshown in full lines in Fig. 3 and in dotted lines in Fig. 5. Fig. 3illustrates how the bolt [9 has been withdrawn to the unlocking positionby the action of coil spring 23. after the withdrawal of locking pin 29.

Fig. 3 also illustrates how, in the retracted position of bolt I9, thelatching pin 45, slidably mounted in a bore 46 in housing I4, is movedinto annular groove 26 by the action of a coil spring s": which isengaged, in bore 46, under compression, between the outer end of latchpin and a plug 48 which is press fitted into the counterbore at theother end of bore :26. The inner end of latch pin 45 is slightlybevelled as indicated, to coact with bevelled shoulder 28 of bolt l9, sothat when the bolt is thrust inwardly to its locked position of Fig. 5,the pin to will be cammed outwardly to its inactive position shown inFig. 5. The engagement of latching pin 45 in slot 26 has the primaryfunction of locking the bolt 19 against complete withdrawal from housingl4 when unlocked. Shoulder 21 will engage against pin 5 to establish apositive lock preventing any further withdrawal of bolt i9. Latch pin 45also functions to exert a camming action against shoulder 23 at the endof retracting movement of bolt :9, which supplements the action ofspring 23 and positively moves bolt is to its fully retracted position,thus making certain that the looking end #9 of bolt is is fullywithdrawn from recess #6. Bore 55 is an enlarged continuation of bore42.

The open end or tumbler bore IE2 is closed by a plug ell which is fittedthereinto, the outer face of plug '59 being flush with the faceofhousing it. The plug 45 has a smooth cylindrical peripheral wall pressfitted into a cylindrical counterbore at the outer end of bore Iii.

To disassemble the partsof the lock, it is necessary to remove not onlythe plug 9 but also the plug G8, which may be provided for by drillingthrough the plugs 48 and Q9 and lifting them out with a suitable toolinserted through the respective drill hole. This is preferable since itobviously provides considerable dilficulty to any efforts to disassemblethe lock by an unauthorized person.

In the modified form of the invention shown in Figs. 8, 9, l0 and 11,the lock la is permanently attached to a main locking bolt or bar 5|which is slidably mounted in cylindrical sleeve bearings 52 and 53carried by a mounting plate 55. Bearings E2, 53 are preferably formedintegrally with plate at by conventional blanking and forming.

operations in which a blank having a pair of tongues projecting from oneside thereof is initially shaped, and is then subjected to a formingoperation in which the projecting tongues are rolled into the form ofthe cylindrical sleeve,

Mounting plate 54 is provided bearings 52, 53. g V with a series ofopenings through which securing elements 55 and 56 (e. g. bolts) may beinserted, for securing the plate to a door 51 or other 7' member to belocked. Lock 1a maybe attached to main locking bar 51 by welding orbrazing as indicated at 58 in Fig. 11. tached to the bolt at its upperend so that it may normally hang in a position depending from the bolt.

,Bar 51 is extended beyond lock To to provide a locking portion 5|adapted to be received in a keeper sleeve 59 on the upper end of aeplate60. Plate 68 is provided witha series of openings It is preferably at 1to receive bolts 6| for securing it to a door frame 62 or the like.

Lock la is identical in construction to lock 1 previously decribed, withthe exception of its connection to main locking bar 5|, and referencecharacters corresponding to those of lock 1 are used to designate thecorresponding parts thereof. A staple 8a is secured to plate 54 in aposition to be received in recess |5 of lock Ia when bar 5| has beenprojected through keeper sleeve 59 to a limit position determined byengagement of lock 1a against bearing sleeve 53. Any means for securelyattaching staple 8a to plate 54 may be employed, as for example, byextending the arms of the staple through registering openings in plate54 and heading the ends of the arms over as indicated at 52 in Fig. 11.A second staple 63 which functions merely as a means to retain the bar5| and look in a retracted position (indicated by broken lines in Fig.8), is secured to plate 54 in a position spaced from staple 8a. Bearing52 may be arranged to form a stop for engagement with lock la todetermine the proper position of the latter for reception of staple 63in recess l5.

It will now be apparent that look Ia may be utilized as a handle tomanipulate main locking bar 5| in sliding it in bearings 52, 53, betweenits retracted and locked positions respectively. In doing so, lock la issimply raised, bar 5| pivoting in bearings 52, 53, until it clearsstaple 8a. or 63, as the case may be, and is then slid to its alternateposition until it engages bearing 52 or 53 as the case may be and maythen be simply dropped onto the other staple. When receiving staple Set,it may be locked thereto by manipulation of the locking mechanism in thesame manner as described for the lock 1. Thus, bar 5| is secured againstretraction from keeper 59 and accordingly the door 51 or the like islocked in its closed position.

It will be noted that the two securing elements 56 are shown as beingconcealed behind lock unit In when the latter is in the locked position.This is a preferable arrangement to prevent access to these bolts,thereby increasing the security of the locking function.

It will be apparent from the foregoing that the invention may also beembodied in an arrangement in which the lock 1 of Fig. 1 is permanentlyattached to hasp member In instead of being separated therefrom. In allother respects, this embodiment of the invention may be identical tothat shown in Fig. 1.

Iclaim:

1. In a locking assembly: a mounting plate adapted to be attached to amember to be locked and having a pair of spaced, integral, axiallyaligned bearing loops; a bolt slidable in said bearing loops and havingone end adapted to be projected into a keeper; a lock housing integrallyunited to said bolt between said bearing loops, and engageablealternately with said bearing loops to define projected and retractedpositions of said bolt respectively, said lock housing having in itsrear side a recess facing said mounting plate; and a staple rigidlyattached to said mounting plate in a position to be received in saidrecess when said lock housing engages a bearing loop in the projectedposition of said bolt; a locking pin slidable in said lock housing froma position extending through said staple while the latter is in saidrecess, to a position releasing the lock housing for swinging movementaround the axis of said bolt, whereby the lock housing may 6 be detachedfrom the staple; and locking mechanism in said lock housing for lockingsaid locking pin in engagement with said staple.

2. In a lock for securing a fastener of a type including a staple havinga portion adapted to project for engagement by the lock, said lockcomprising: a housing having a recess of dimensions corresponding tothose of the projecting portion of the staple but slightly larger thanthe same so as to freely receive the projecting portion of the staple,said housing having a bolt slide bore disposed at right angles to theplane of said recess and intersecting the same, said bore being closedat one end and at its other end having a counterbore opening through theside of the housing, said housing having a locking pin bore disposed atright angles to said bolt slide bore, and having a locking tumbler boreintersected by said locking pin bore; a locking bolt slidably mounted insaid bolt slide bore, having a locking end adapted, in a locked positionthereof, to traverse said recess and to thereby extend through thestaple received in the recess, so as to secure the lock to the staple,the opposite end of said bolt being adapted in an unlocked position ofsaid bolt in which said locking end is withdrawn from said recess, to beprojected through the open end of said bolt slide bore so as to beengageable for pushing the bolt back to the locked position, said bolthaving, at said locking end, a locking shoulder, having, adjacent saidopposite end an intermediate annular groove and having, between saidannular groove and said opposite end, a head fitted within saidcounterbore, a coil spring encircling said bolt and engaged undercompression between said head and the bottom of said counterbore forprojecting the bolt to said unlocked position when the bolt is releasedfor unlocking movement; a locking pin slidably mounted in said lockingpin bore, having a locking end adapted to be projected into said annulargroove to engage said locking shoulder to retain the bolt in its lockingposition, and having an abutment member projecting into said tumblerbore; means yieldingly engaged against the other end of said locking pinand a confining portion of said housing to urge said locking pin towardits locking position in which said looking end engages in said annulargroove; a key operated rotatable locking tumbler within said tumblerbore, and a cam on said tumbler engageable with the side of saidabutment member opposite said last mentioned yielding means so as to beoperable when said tumbler is rotated, to

move said locking pin against the resistance of said last mentionedyielding means, to an unlocking position releasing said bolt forretraction to the unlocking position of said bolt.

EMANUEL MANCUSO.

UNITED STATES PATENTS Number Name Date 708,892 Long Sept. 9, 19021,081,808 Borsky Dec. 1 6, 1913 1,446,760 Miller Feb. 27, 1923 1,783,905Copell Dec. 12, 1930 1,976,274 Yanusko Oct. 19, 1934 2,104,981 Falk Jan.11, 1938 2,108,145 'Short Feb. 15, 1938 FOREIGN PATENTS Number CountryDate 417,571 Italy Jan. 22, 1947

